init free 2.1.3

2025-08-02 20:11:41 +08:00
commit 24bc0ab149
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+using Nova;
+using UnityEngine;
+using UnityEngine.Events;
+
+namespace NovaSamples.UIControls
+{
+    /// <summary>
+    /// A UI control which reacts to user input and fires click events
+    /// </summary>
+    public class Button : UIControl<ButtonVisuals>
+    {
+        [Tooltip("Event fired when the button is clicked.")]
+        public UnityEvent OnClicked = null;
+
+        private void OnEnable()
+        {
+            if (View.TryGetVisuals(out ButtonVisuals visuals))
+            {
+                // Set default state
+                visuals.UpdateVisualState(VisualState.Default);
+            }
+
+            // Subscribe to desired events
+            View.UIBlock.AddGestureHandler<Gesture.OnClick, ButtonVisuals>(HandleClicked);
+            View.UIBlock.AddGestureHandler<Gesture.OnHover, ButtonVisuals>(ButtonVisuals.HandleHovered);
+            View.UIBlock.AddGestureHandler<Gesture.OnUnhover, ButtonVisuals>(ButtonVisuals.HandleUnhovered);
+            View.UIBlock.AddGestureHandler<Gesture.OnPress, ButtonVisuals>(ButtonVisuals.HandlePressed);
+            View.UIBlock.AddGestureHandler<Gesture.OnRelease, ButtonVisuals>(ButtonVisuals.HandleReleased);
+            View.UIBlock.AddGestureHandler<Gesture.OnCancel, ButtonVisuals>(ButtonVisuals.HandlePressCanceled);
+        }
+
+        private void OnDisable()
+        {
+            // Unsubscribe from events
+            View.UIBlock.RemoveGestureHandler<Gesture.OnClick, ButtonVisuals>(HandleClicked);
+            View.UIBlock.RemoveGestureHandler<Gesture.OnHover, ButtonVisuals>(ButtonVisuals.HandleHovered);
+            View.UIBlock.RemoveGestureHandler<Gesture.OnUnhover, ButtonVisuals>(ButtonVisuals.HandleUnhovered);
+            View.UIBlock.RemoveGestureHandler<Gesture.OnPress, ButtonVisuals>(ButtonVisuals.HandlePressed);
+            View.UIBlock.RemoveGestureHandler<Gesture.OnRelease, ButtonVisuals>(ButtonVisuals.HandleReleased);
+            View.UIBlock.RemoveGestureHandler<Gesture.OnCancel, ButtonVisuals>(ButtonVisuals.HandlePressCanceled);
+        }
+
+        /// <summary>
+        /// Fire the Unity event on Click.
+        /// </summary>
+        /// <param name="evt">The click event data.</param>
+        /// <param name="visuals">The buttons visuals which received the click.</param>
+        private void HandleClicked(Gesture.OnClick evt, ButtonVisuals visuals) => OnClicked?.Invoke();
+    }
+}